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Finding the Fourth Proportional to 179,808.16, 269,709.36 and 69,000.16

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Solution

The fourth proportional to 179,808.16, 269,709.36 and 69,000.16 is: 103,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,808.16 : 269,709.36 = 69,000.16 : x
  2. Step 2: Convert to fraction form
    179,808.16/269,709.36 = 69,000.16/x
  3. Step 3: Cross multiply
    179,808.16x = 269,709.36 × 69,000.16
  4. Step 4: Simplify right side
    179,808.16x = 18,609,988,993.50
  5. Step 5: Solve for x
    x = 18,609,988,993.50/179,808.16
  6. Step 6: Final answer
    x = 103,499.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.